We support any deal that denies Iran nuclear weapons, that has a continuous and robust inspection mechanism and that has snap-back provisions in case Iran violates the agreement. Our concern is that Iran will use the income it receives as a result of the lifting of the nuclear sanctions in order to fund its nefarious activities in the region.
The trade agreement itself does have labor and environmental protections, but we have to stand for human rights and we have to make sure that violence isn't being perpetrated against workers who are just trying to organize for their rights.
When ordinary Soviet citizens are told that a vital trade agreement awarding their country most-favoured-nation status with the US is being blocked in Congress because Soviet Jews are demanding as an absolute right something few other inhabitants can expect as a special privilege - then the result is likely to be spontaneous outbreaks of anti-Semitism.